A three-part feature that looks at several aspects of the behind-the-scenes work that went into the production — Script Meeting, Heroin Test Show & Tell, and Setting Up the Takedown. We find “Script Meeting” (8:13), “Heroin Test Show and Tell” (8:57) and “Setting Up the Takedown” (7:45). These provide “fly on the wall” glimpses of various events. “Meeting” shows a chat among Scott, Roberts and Zaillian as they parse out some scenes, while “Test” looks at the specifics of that aspect of the film. Finally, “Takedown” gives us the prep work for the movie’s law-enforcement climax.